Auditory association cortex lesions impair auditory short-term memory in monkeys.
Monkeys that were trained to perform auditory and visual short-term memory tasks (delayed matching-to-sample) received lesions of the auditory association cortex in the superior temporal gyrus. Although visual memory was completely unaffected by the lesions, auditory memory was severely impaired. Despite this impairment, all monkeys could discriminate sounds closer in frequency than those used in the auditory memory task. This result suggests that the superior temporal cortex plays a role in auditory processing and retention similar to the role the inferior temporal cortex plays in visual processing and retention.
Colombo
M
M
Department of Psychology, Rutgers, State University of New Jersey, New Brunswick 08903.
D'Amato
M R
MR
Rodman
H R
HR
Gross
C G
CG
D000818:Animals; D001303:Auditory Cortex / Q000502:physiology* / Q000601:surgery; D001307:Auditory Perception / Q000502:physiology*; D002428:Cebus; D008570:Memory, Short-Term / Q000502:physiology*; D013016:Sound; D014796:Visual Perception / Q000502:physiology